TWI843614B - Self-lubricating system for vibration box of construction pile driving machine - Google Patents

Abstract

The present invention discloses a vibration box self-lubricating system for a building pile driver, comprising: a vibration box, two eccentric shaft groups, a plurality of bearings and a motor. The vibration box is provided with two assembly areas. The two eccentric shaft groups are respectively provided with a driving shaft and a driven shaft. The driving shaft and the driven shaft are respectively penetrated through the two assembly areas. A gear is respectively provided on the driving shaft and the driven shaft, and a counterweight is respectively provided on both sides of the gear. A clockwise oil circuit and a counterclockwise oil circuit are respectively provided on the side of each counterweight away from the gear. The clockwise oil circuit A clockwise oil inlet and a first oil spray port are provided, and a counterclockwise oil inlet and a second oil spray port are provided in the counterclockwise oil circuit. The plurality of bearing sleeves are provided at both ends of the driving shaft and the driven shaft, and are adjacently provided on the outer side of each counterweight block. The motor is connected to the driving shaft to provide power to drive the driving shaft to rotate; thereby, the lubricating oil can fully flow into the bearing according to the rotation speed of the driving shaft, so that the lubricating oil can fully contact the bearing, thereby enhancing the lubrication and cooling and improving the heat exchange efficiency.

Description

Self-lubricating system of vibration box of construction pile driving machine

The present invention relates to a self-lubricating system, in particular to a self-lubricating system for a vibration box of a construction pile driving machine.

According to the general construction and civil engineering, when excavating, piles of appropriate depth and interlocking are usually driven in first, and the area to be excavated is enclosed before excavation. This is to avoid soil collapse around the excavation area and avoid causing cracks in the walls of neighboring houses or damage to the foundation. Piling projects generally use a vibrating pile driver installed on an excavator (excavator). The vibrating pile driver clamps the pile and performs the piling operation by the weight of the pile and the vibration of the vibrating pile driver.

The structure of the known vibrating pile driver includes a hanger having two suspension arms, a pivot seat is arranged between the two suspension arms, the pivot seat is combined with a vibrating box body with a clamping head assembled at the bottom, the vibrating box body has a chamber, and the chamber has a resonant device driven by a hydraulic motor to form a resonant vibration, so that the pile body clamped by the clamping head at the bottom of the vibrating box body can be vibrated and driven into the ground.

When the vibrating pile driver is used, the block with the eccentric center of gravity generates vibration in the form of rotation, thereby providing the kinetic energy of the vibration during pile driving. In addition, the axis used for rotation in the vibrating device is used for the rotation of the eccentric center of gravity, so the rotational friction brought by the high momentum is more likely to generate waste heat. Therefore, lubricating oil is added to the space where the parts are set inside and soaked in it, which produces the functions of heat dissipation and lubrication. The lubricating oil in the vibrating device is mainly used to be half full, which can prevent the overflow of excessive lubricating oil and reduce the resistance caused by the fluid of the lubricating oil.

Therefore, the industry has developed a self-lubricating system for the vibration box, as shown in the patent case No. M586733 "Lubricating structure for pile driver". When it is used, the vibration wheel can drive the gear plate to pump the lubricating oil into the perforations of the partition, and the lubricating oil can flow into the lubricating space, and the predetermined amount of lubricating oil can be accommodated through the inclined accommodation height of each partition. The excess lubricating oil can flow back to the accommodation space below through each perforation to maintain the amount of lubricating oil in the accommodation space and the lubricating space, and the lubricating oil in the lubricating space can flow to the lubricating port of each bearing seat through each diversion opening, and diverted to the bearing for lubrication and cooling.

However, the known vibration box self-lubricating system can pump lubricating oil into the perforations of the partition and then divert the lubricating oil to the bearings for lubrication and cooling. However, since the lubricating oil is diverted to the bearings by gravity, the flow rate of the lubricating oil is slow. When the lubricating oil is diverted to the bearings, it can only flow through the bearing surface and cannot enter the bearing interior for lubrication and cooling. As a result, the bearings are still prone to damage and jamming due to high temperature and thermal expansion caused by insufficient lubrication, shortening the service life of the bearings and increasing the frequency of bearing replacement, causing considerable trouble to users and increasing the cost of purchasing and replacing the bearings.

The inventor of the present invention, in view of the above-mentioned shortcomings of the known vibration box self-lubricating system, came up with the idea of creating this invention. After much discussion and trial production of samples, as well as many revisions and improvements, the present invention was launched.

The present invention provides a vibration box self-lubricating system for a building pile driver, comprising: a vibration box, a containing space is provided inside for containing lubricating oil, the vibration box is provided with two grouping areas; two eccentric shaft groups, each provided with a driving shaft and a driven shaft, the driving shaft and the driven shaft are respectively penetrated through the two grouping areas, each of the driving shaft and the driven shaft is provided with a gear, and the driving shaft and the driven shaft are respectively provided with a gear. The gears assembled on the driven shaft are engaged with each other, and a counterweight block is respectively assembled on the driving shaft and the driven shaft on both sides of the gear. A circular arc groove is respectively arranged on the side of each counterweight block away from the gear, and an oil guide plate is respectively arranged on each circular arc groove. A positioning pin is respectively arranged in the middle part of each oil guide plate and inserted into the circular arc groove, so that each circular arc groove and each oil guide plate are aligned. A clockwise oil circuit and a counterclockwise oil circuit are formed respectively, the clockwise oil circuit has a clockwise oil inlet, the counterclockwise oil circuit has a counterclockwise oil inlet, the clockwise oil circuit and the counterclockwise oil circuit are separated by the positioning pin, each of the oil guide plates is respectively provided with a first oil injection port communicating with the clockwise oil circuit and a second oil injection port communicating with the counterclockwise oil circuit near the middle; a plurality of bearings, Sleeved on both ends of the driving shaft and the driven shaft, adjacently arranged on the outer side of each counterweight block, the multiple bearings are respectively accommodated in two sealing units, the two sealing units are fixed on the opposite sides of the vibration box to seal the accommodation space of the vibration box; and a motor is assembled on one of the two sealing units, connected to the driving shaft, and provides power to drive the driving shaft to rotate.

The main purpose of the vibration box self-lubricating system of the construction pile driver of the present invention is that when it is used, the counterweight block can be used to rotate at a speed that allows the lubricating oil to flow into the clockwise oil circuit or the counterclockwise oil circuit, and then sprayed toward the inside of the bearing from the first oil spray port or the second oil spray port, so that the lubricating oil can fully contact the inside of the bearing, thereby enhancing the lubrication and cooling effects and improving the heat exchange efficiency, avoiding the bearing from being damaged by high temperature and thermal expansion due to insufficient lubrication, so as to achieve a long service life of the bearing and reduce the replacement frequency, thereby reducing the trouble and inconvenience of replacement and saving the user's consumption cost.

The following is a further description of the preferred embodiment of the present invention in conjunction with the diagram, in the hope that people familiar with the relevant technology of the present invention can implement it according to the description in this manual.

First, please refer to the first to eleventh figures, the vibration box self-lubricating system of the construction pile driving machine of the present invention includes: a vibration box 10, two eccentric shaft sets 20, a plurality of bearings 30 and a motor 40.

The vibration box 10 is pivoted between two arms 61 of a fixed frame 60, and a clamp 70 is installed at the bottom. A receiving space 11 is provided inside the vibration box 10 for accommodating lubricating oil. The vibration box 10 is provided with two assembly areas 12.

The two eccentric shaft assemblies 20 are respectively provided with a driving shaft 21 and a driven shaft 22, and the driving shaft 21 and the driven shaft 22 are respectively provided in the two assembly areas 12, and a gear 23 is respectively provided on the driving shaft 21 and the driven shaft 22, and the gears 23 provided on the driving shaft 21 and the driven shaft 22 are engaged and linked with each other, and a counterweight block 24 is respectively provided on the driving shaft 21 and the driven shaft 22 on both sides of the gear 23, and each The counterweight 24 is provided with an arc groove 241 on one side away from the gear 23. An oil guide plate 25 is provided on each of the arc grooves 241. A positioning pin 251 is provided in the middle of each of the oil guide plates 25 and inserted into the arc groove 241, so that a clockwise oil path 26 and a counterclockwise oil path 27 are formed between each of the arc grooves 241 and each of the oil guide plates 25. The counterclockwise oil circuit 27 is a single channel and has good versatility. The clockwise oil circuit 26 has a clockwise oil inlet 261, and the counterclockwise oil circuit 27 has a counterclockwise oil inlet 271. The clockwise oil circuit 26 and the counterclockwise oil circuit 27 are separated by the positioning pin 251. Each of the oil guide plates 25 is provided with a first oil injection port 252 connected to the clockwise oil circuit 26 and a first oil injection port 253 connected to the counterclockwise oil circuit 27 near the middle. 7, in this embodiment, the arc-shaped groove 241 is roughly semicircular, and the oil guide plate 25 is a semicircular strip with a rectangular cross section. The oil guide plate 25 is an independent component, which is assembled and fixed on the arc-shaped groove 241 of the counterweight block 24, but not limited to this. The oil guide plate 25 can also be formed as a whole with the counterweight block 24. The clockwise oil path 26 and the counterclockwise oil path 27 are rectangular in cross section.

The plurality of bearings 30 are sleeved on both ends of the driving shaft 21 and the driven shaft 22, and are adjacently disposed on the outer sides of each of the counterweight blocks 24. The plurality of bearings 30 are respectively accommodated in two sealing units 50, and the two sealing units 50 are assembled on opposite sides of the vibration box 10 to seal the accommodating space 11 of the vibration box 10.

The motor 40 is assembled on one of the two cover units 50 and connected to the driving shaft 21 to provide power to drive the driving shaft 21 to rotate. In this embodiment, the motor 40 is a hydraulic motor.

When the present invention is used, as shown in FIGS. 12 to 14, the vibration box 10 is mounted on a construction excavator (excavator) or a crane (not shown) using a fixing frame 60, and a proper amount of lubricating oil is injected into the accommodation space 11 of the vibration box 10, and the motor 40 provides power to drive the driving shaft 21 and the gear 23 and the counterweight block 24 assembled on the driving shaft 21 to rotate. The driven shaft 22 and the gear 23 and the counterweight 24 mounted on the driven shaft 22 rotate synchronously in the opposite direction. The counterweight 24 rotates to make the vibration box 10 vibrate up and down. When the counterweight 24 rotates clockwise, the lubricating oil in the accommodating space 11 flows into the clockwise oil path 26 from the clockwise oil inlet 261, and flows along the clockwise oil path 26. The first oil spray port 252 turns to spray toward the bearing 30, so that the lubricating oil fully contacts the bearing 30, enters the bearing 30 for lubrication and cooling, and then flows back to the accommodation space 11. When the counterweight 24 rotates counterclockwise, the lubricating oil in the accommodation space 11 flows from the counterclockwise oil inlet 271 into the counterclockwise oil path 27, and flows along the counterclockwise oil path 27 to the bearing 30. The second oil spray port 253 turns to spray toward the bearing 30, so that the lubricating oil fully contacts the bearing 30, enters the bearing 30 for lubrication and cooling, and then flows back into the accommodation space 11. The faster the rotation speed of the counterweight 24, the higher the oil spraying amount, so that the lubricating oil fully contacts the bearing 30, thereby enhancing the lubrication, cooling and heat exchange efficiency.

The structure of the above specific implementation example can achieve the following benefits:

The vibration box self-lubricating system of the construction pile driver of the present invention can provide lubricating oil to flow into the clockwise oil path 26 or the counterclockwise oil path 27 through the rotation speed of the counterweight block 24 when in use, and flow into the interior of the bearing 30 from the first oil injection port 252 or the second oil injection port 253, so that the lubricating oil fully contacts the interior of the bearing 30, and the lubricating oil enters the bearing After that, the inside of bearing 30 will be lubricated and cooled to improve the heat exchange efficiency, so as to avoid the high temperature and thermal expansion caused by insufficient lubrication inside bearing 30, so as to extend the service life of bearing 30 and reduce the replacement frequency, thereby reducing the trouble and inconvenience of replacement and saving the consumption cost of users, thereby enhancing the market competitiveness and economic benefits of its products.

10: Vibration box

11: Storage space

12: Group Setting Area

20: Eccentric shaft assembly

21: Drive shaft

22: Driven shaft

23: Gear

24: Counterweight

241: Arc-shaped groove

25: Oil guide plate

251: Positioning pin

252: First oil spray port

253: Second oil spray port

26: Oil Road along the clock

261: Clockwise oil inlet

27: Counterclockwise oil circuit

271: Counterclockwise oil inlet

30: Bearing

40: Motor

50: Capping unit

60:Fixed bracket

61: Arm

70: Clip

The first figure is a three-dimensional diagram of a preferred embodiment of the present invention.

The second figure is a three-dimensional exploded view of a preferred embodiment of the present invention.

The third figure is a three-dimensional exploded view of the vibration box of the present invention.

The fourth figure is a three-dimensional exploded view of the two eccentric shaft assemblies of the present invention.

The fifth figure is a three-dimensional diagram of the oil guide plate of the present invention.

Figure 6 is a cross-sectional view of the vibration box of the present invention.

Figure 7 is another cross-sectional view of the vibration box of the present invention.

The eighth picture is an enlarged view of the A1 part of the sixth picture.

The ninth picture is an enlarged view of part A2 of the seventh picture.

The tenth picture is an enlarged view of part A3 of the ninth picture.

Figure 11 is another cross-sectional view of the vibration box of the present invention.

Figure 12 is a cross-sectional diagram of the oil spray lubrication and cooling method of the present invention.

Figure 13 is another cross-sectional schematic diagram of the oil spray lubrication and cooling method of the present invention.

Figure 14 is an enlarged view of part A4 of Figure 12.

20: Eccentric shaft assembly

21: Drive shaft

22: Driven shaft

23: Gear

24: Counterweight

241: Arc-shaped groove

25: Oil guide plate

251: Positioning pin

252: First oil injection port

253: Second oil injection port

Claims (7)

A self-lubricating system for a vibration box of a construction pile driver comprises: a vibration box, a containing space is arranged inside the vibration box for containing lubricating oil, the vibration box is provided with two assembly areas; two eccentric shaft groups, each of which is provided with a driving shaft and a driven shaft, the driving shaft and the driven shaft are respectively penetrated through the two assembly areas, each of which is provided with a gear, and the driving shaft and the driven shaft are respectively provided with a gear. The gears assembled on the upper part are engaged with each other, and a counterweight block is respectively assembled on both sides of the gear on the driving shaft and the driven shaft, and a circular arc groove is respectively provided on the side of each counterweight block away from the gear, and an oil guide plate is respectively provided on each circular arc groove, and a positioning pin is respectively provided in the middle part of each oil guide plate and inserted into the circular arc groove, so that each circular arc groove and each oil guide plate are respectively A clockwise oil circuit and a counterclockwise oil circuit are formed, the clockwise oil circuit has a clockwise oil inlet, the counterclockwise oil circuit has a counterclockwise oil inlet, the clockwise oil circuit and the counterclockwise oil circuit are separated by the positioning pin, each of the oil guide plates is respectively provided with a first oil spray port communicating with the clockwise oil circuit and a second oil spray port communicating with the counterclockwise oil circuit near the middle; a plurality of bearings, sleeves Located at the two ends of the driving shaft and the driven shaft, adjacent to the outer side of each counterweight block, the multiple bearings are respectively accommodated in two sealing units, the two sealing units are fixed on the opposite sides of the vibration box to seal the accommodating space of the vibration box; and a motor is assembled on one of the two sealing units, connected to the driving shaft, and provides power to drive the driving shaft to rotate. The vibration box self-lubricating system of the construction pile driver as described in claim 1, wherein the clockwise oil circuit and the counterclockwise oil circuit are single channels. As described in claim 1, the vibration box self-lubricating system of the construction pile driver, wherein the arc-shaped groove is roughly semicircular, and the oil guide plate is a semicircular arc strip with a rectangular cross section. As described in claim 1, the vibration box self-lubricating system of the construction pile driver, wherein the oil guide plate is an independent component, assembled and fixed on the arc-shaped groove of the counterweight block. The vibration box self-lubricating system of the construction pile driver as described in claim 1, wherein the oil guide plate and the counterweight block are integrally formed. The vibration box self-lubricating system of the construction pile driver as described in claim 1, wherein the cross-section of the clockwise oil circuit and the counterclockwise oil circuit is rectangular. A vibration box self-lubricating system for a construction pile driver as described in claim 1, wherein the motor is a hydraulic motor.

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